Move grid checking into the layout algorithm. (26f637b5) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java

+4 −3

Original line number	Diff line number	Diff line
		@@ -201,6 +201,8 @@ public class RecentsImpl implements ActivityOptions.OnAnimationFinishedListener
		Resources res = mContext.getResources();
		reloadResources();
		mDummyStackView.reloadOnConfigurationChange();
		mDummyStackView.getStackAlgorithm().getGridState().setHasDockedTasks(
		Recents.getSystemServices().hasDockedTask());
		}

		/**
		@@ -716,7 +718,7 @@ public class RecentsImpl implements ActivityOptions.OnAnimationFinishedListener
		if (task.isFreeformTask()) {
		mTmpTransform = stackLayout.getStackTransformScreenCoordinates(task,
		stackScroller.getStackScroll(), mTmpTransform, null,
		windowOverrideRect, false /* useGridLayout */);
		windowOverrideRect);
		Bitmap thumbnail = drawThumbnailTransitionBitmap(task, mTmpTransform,
		mThumbTransitionBitmapCache);
		Rect toTaskRect = new Rect();
		@@ -767,8 +769,7 @@ public class RecentsImpl implements ActivityOptions.OnAnimationFinishedListener
		stackView.updateToInitialState();
		boolean isInSplitScreen = Recents.getSystemServices().hasDockedTask();
		stackView.getStackAlgorithm().getStackTransformScreenCoordinates(launchTask,
		stackView.getScroller().getStackScroll(), mTmpTransform, null, windowOverrideRect,
		Recents.getConfiguration().isGridEnabled && !isInSplitScreen);
		stackView.getScroller().getStackScroll(), mTmpTransform, null, windowOverrideRect);
		return mTmpTransform;
		}

packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java

+2 −4

Original line number	Diff line number	Diff line
		@@ -337,8 +337,7 @@ public class RecentsView extends FrameLayout {

		if (RecentsDebugFlags.Static.EnableStackActionButton) {
		// Measure the stack action button within the constraints of the space above the stack
		Rect buttonBounds = mTaskStackView.mLayoutAlgorithm.getStackActionButtonRect(
		mTaskStackView.useGridLayout());
		Rect buttonBounds = mTaskStackView.mLayoutAlgorithm.getStackActionButtonRect();
		measureChild(mStackActionButton,
		MeasureSpec.makeMeasureSpec(buttonBounds.width(), MeasureSpec.AT_MOST),
		MeasureSpec.makeMeasureSpec(buttonBounds.height(), MeasureSpec.AT_MOST));
		@@ -773,8 +772,7 @@ public class RecentsView extends FrameLayout {
		* @return the bounds of the stack action button.
		*/
		private Rect getStackActionButtonBoundsFromStackLayout() {
		Rect actionButtonRect = new Rect(mTaskStackView.mLayoutAlgorithm.getStackActionButtonRect(
		mTaskStackView.useGridLayout()));
		Rect actionButtonRect = new Rect(mTaskStackView.mLayoutAlgorithm.getStackActionButtonRect());
		int left = isLayoutRtl()
		? actionButtonRect.left - mStackActionButton.getPaddingLeft()
		: actionButtonRect.right + mStackActionButton.getPaddingRight()

packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -157,7 +157,7 @@ public class TaskStackAnimationHelper {

		// Get the current transform for the task, which will be used to position it offscreen
		stackLayout.getStackTransform(task, stackScroller.getStackScroll(), mTmpTransform,
		null, mStackView.useGridLayout());
		null);

		if (hideTask) {
		tv.setVisibility(View.INVISIBLE);
		@@ -230,7 +230,7 @@ public class TaskStackAnimationHelper {
		// Get the current transform for the task, which will be updated to the final transform
		// to animate to depending on how recents was invoked
		stackLayout.getStackTransform(task, stackScroller.getStackScroll(), mTmpTransform,
		null, mStackView.useGridLayout());
		null);

		if (launchState.launchedFromApp && !launchState.launchedViaDockGesture) {
		if (task.isLaunchTarget) {

packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java

+53 −11

Original line number	Diff line number	Diff line
		@@ -213,6 +213,41 @@ public class TaskStackLayoutAlgorithm {
		}
		}

		/**
		* The state telling the algorithm whether to use grid layout or not.
		*/
		public static class GridState {
		private boolean mDraggingOverDockedState;
		private boolean mHasDockedTask;

		private GridState() {
		mDraggingOverDockedState = false;
		mHasDockedTask = false;
		}

		/**
		* Check whether we should use the grid layout.
		* We use the grid layout for Recents iff all the following is true:
		* 1. Grid-mode is enabled.
		* 2. The activity is not in split screen mode (there's no docked task).
		* 3. The user is not dragging a task view over the dock state.
		* @return True if we should use the grid layout.
		*/
		boolean useGridLayout() {
		return Recents.getConfiguration().isGridEnabled &&
		!mDraggingOverDockedState &&
		!mHasDockedTask;
		}

		public void setDragging(boolean draggingOverDockedState) {
		mDraggingOverDockedState = draggingOverDockedState;
		}

		public void setHasDockedTasks(boolean hasDockedTask) {
		mHasDockedTask = hasDockedTask;
		}
		}

		// A report of the visibility state of the stack
		public class VisibilityReport {
		public int numVisibleTasks;
		@@ -227,6 +262,7 @@ public class TaskStackLayoutAlgorithm {

		Context mContext;
		private StackState mState = StackState.SPLIT;
		private GridState mGridState = new GridState();
		private TaskStackLayoutAlgorithmCallbacks mCb;

		// The task bounds (untransformed) for layout. This rect is anchored at mTaskRoot.
		@@ -733,8 +769,8 @@ public class TaskStackLayoutAlgorithm {
		}
		}

		public Rect getStackActionButtonRect(boolean useGridLayout) {
		return useGridLayout
		public Rect getStackActionButtonRect() {
		return mGridState.useGridLayout()
		? mTaskGridLayoutAlgorithm.getStackActionButtonRect() : mStackActionButtonRect;
		}

		@@ -759,6 +795,13 @@ public class TaskStackLayoutAlgorithm {
		return mState;
		}

		/**
		* Returns the current grid layout state.
		*/
		public GridState getGridState() {
		return mGridState;
		}

		/**
		* Returns whether this stack layout has been initialized.
		*/
		@@ -842,26 +885,25 @@ public class TaskStackLayoutAlgorithm {
		* is what the view is measured and laid out with.
		*/
		public TaskViewTransform getStackTransform(Task task, float stackScroll,
		TaskViewTransform transformOut, TaskViewTransform frontTransform,
		boolean useGridLayout) {
		TaskViewTransform transformOut, TaskViewTransform frontTransform) {
		return getStackTransform(task, stackScroll, mFocusState, transformOut, frontTransform,
		false /* forceUpdate /, false / ignoreTaskOverrides */, useGridLayout);
		false /* forceUpdate /, false / ignoreTaskOverrides */);
		}

		public TaskViewTransform getStackTransform(Task task, float stackScroll,
		TaskViewTransform transformOut, TaskViewTransform frontTransform,
		boolean ignoreTaskOverrides, boolean useGridLayout) {
		boolean ignoreTaskOverrides) {
		return getStackTransform(task, stackScroll, mFocusState, transformOut, frontTransform,
		false /* forceUpdate */, ignoreTaskOverrides, useGridLayout);
		false /* forceUpdate */, ignoreTaskOverrides);
		}

		public TaskViewTransform getStackTransform(Task task, float stackScroll, int focusState,
		TaskViewTransform transformOut, TaskViewTransform frontTransform, boolean forceUpdate,
		boolean ignoreTaskOverrides, boolean useGridLayout) {
		boolean ignoreTaskOverrides) {
		if (mFreeformLayoutAlgorithm.isTransformAvailable(task, this)) {
		mFreeformLayoutAlgorithm.getTransform(task, transformOut, this);
		return transformOut;
		} else if (useGridLayout) {
		} else if (mGridState.useGridLayout()) {
		int taskIndex = mTaskIndexMap.get(task.key.id);
		int taskCount = mTaskIndexMap.size();
		mTaskGridLayoutAlgorithm.getTransform(taskIndex, taskCount, transformOut, this);
		@@ -887,10 +929,10 @@ public class TaskStackLayoutAlgorithm {
		*/
		public TaskViewTransform getStackTransformScreenCoordinates(Task task, float stackScroll,
		TaskViewTransform transformOut, TaskViewTransform frontTransform,
		Rect windowOverrideRect, boolean useGridLayout) {
		Rect windowOverrideRect) {
		TaskViewTransform transform = getStackTransform(task, stackScroll, mFocusState,
		transformOut, frontTransform, true /* forceUpdate */,
		false /* ignoreTaskOverrides */, useGridLayout);
		false /* ignoreTaskOverrides */);
		return transformToScreenCoordinates(transform, windowOverrideRect);
		}

packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java

+13 −17

Original line number	Diff line number	Diff line
		@@ -159,7 +159,6 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		private int mTaskCornerRadiusPx;
		private int mDividerSize;
		private int mStartTimerIndicatorDuration;
		private boolean mDraggingOverDockState;

		@ViewDebug.ExportedProperty(category="recents")
		private boolean mTaskViewsClipDirty = true;
		@@ -501,13 +500,13 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal

		// Calculate the current and (if necessary) the target transform for the task
		transform = mLayoutAlgorithm.getStackTransform(task, curStackScroll,
		taskTransforms.get(i), frontTransform, ignoreTaskOverrides, useGridLayout());
		taskTransforms.get(i), frontTransform, ignoreTaskOverrides);
		if (useTargetStackScroll && !transform.visible) {
		// If we have a target stack scroll and the task is not currently visible, then we
		// just update the transform at the new scroll
		// TODO: Optimize this
		transformAtTarget = mLayoutAlgorithm.getStackTransform(task, targetStackScroll,
		new TaskViewTransform(), frontTransformAtTarget, useGridLayout());
		new TaskViewTransform(), frontTransformAtTarget);
		if (transformAtTarget.visible) {
		transform.copyFrom(transformAtTarget);
		}
		@@ -738,7 +737,7 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		} else {
		mLayoutAlgorithm.getStackTransform(task, mStackScroller.getStackScroll(),
		focusState, transform, null, true /* forceUpdate */,
		false /* ignoreTaskOverrides */, useGridLayout());
		false /* ignoreTaskOverrides */);
		}
		transform.visible = true;
		}
		@@ -755,7 +754,7 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		Task task = tasks.get(i);
		TaskViewTransform transform = transformsOut.get(i);
		mLayoutAlgorithm.getStackTransform(task, stackScroll, focusState, transform, null,
		true /* forceUpdate */, ignoreTaskOverrides, useGridLayout());
		true /* forceUpdate */, ignoreTaskOverrides);
		transform.visible = true;
		}
		}
		@@ -1835,7 +1834,7 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		// Enlarge the dragged view slightly
		float finalScale = event.taskView.getScaleX() * DRAG_SCALE_FACTOR;
		mLayoutAlgorithm.getStackTransform(event.task, getScroller().getStackScroll(),
		mTmpTransform, null, useGridLayout());
		mTmpTransform, null);
		mTmpTransform.scale = finalScale;
		mTmpTransform.translationZ = mLayoutAlgorithm.mMaxTranslationZ + 1;
		mTmpTransform.dimAlpha = 0f;
		@@ -1856,7 +1855,7 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		Interpolators.FAST_OUT_SLOW_IN);
		boolean ignoreTaskOverrides = false;
		if (event.dropTarget instanceof TaskStack.DockState) {
		mDraggingOverDockState = true;
		mLayoutAlgorithm.getGridState().setDragging(true);
		// Calculate the new task stack bounds that matches the window size that Recents will
		// have after the drop
		final TaskStack.DockState dockState = (TaskStack.DockState) event.dropTarget;
		@@ -1876,7 +1875,7 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		updateLayoutAlgorithm(true /* boundScroll */);
		ignoreTaskOverrides = true;
		} else {
		mDraggingOverDockState = false;
		mLayoutAlgorithm.getGridState().setDragging(false);
		// Restore the pre-drag task stack bounds, but ensure that we don't layout the dragging
		// task view, so add it back to the ignore set after updating the layout
		removeIgnoreTask(event.task);
		@@ -1887,7 +1886,7 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		}

		public final void onBusEvent(final DragEndEvent event) {
		mDraggingOverDockState = false;
		mLayoutAlgorithm.getGridState().setDragging(false);
		// We don't handle drops on the dock regions
		if (event.dropTarget instanceof TaskStack.DockState) {
		// However, we do need to reset the overrides, since the last state of this task stack
		@@ -2077,6 +2076,10 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal
		public void reloadOnConfigurationChange() {
		mStableLayoutAlgorithm.reloadOnConfigurationChange(getContext());
		mLayoutAlgorithm.reloadOnConfigurationChange(getContext());

		boolean hasDockedTask = Recents.getSystemServices().hasDockedTask();
		mStableLayoutAlgorithm.getGridState().setHasDockedTasks(hasDockedTask);
		mLayoutAlgorithm.getGridState().setHasDockedTasks(hasDockedTask);
		}

		/**
		@@ -2131,16 +2134,9 @@ public class TaskStackView extends FrameLayout implements TaskStack.TaskStackCal

		/**
		* Check whether we should use the grid layout.
		* We use the grid layout for Recents iff all the following is true:
		* 1. Grid-mode is enabled.
		* 2. The activity is not in split screen mode (there's no docked task).
		* 3. The user is not dragging a task view over the dock state.
		* @return True if we should use the grid layout.
		*/
		public boolean useGridLayout() {
		return Recents.getConfiguration().isGridEnabled
		&& !Recents.getSystemServices().hasDockedTask()
		&& !mDraggingOverDockState;
		return mLayoutAlgorithm.getGridState().useGridLayout();
		}

		/**